Merge #7131

7131: Created an assist for inlining a function's body into its caller r=matklad a=Michael-F-Bryan

This introduces an `inline_function` assist which will convert code like this:

```rust
fn add(a: u32, b: u32) -> u32 { a + b }
fn main() {
    let x = add<|>(1, 2);
}
```

Into something like this:

```rust
fn add(a: u32, b: u32) -> u32 { a + b }
fn main() {
    let x = { 
        let a = 1; 
        let b = 2; 
        a + b 
    };
}
```

Fixes #6863.

Co-authored-by: Michael-F-Bryan <[email protected]>

1 files changed, 23 insertions, 0 deletions

diff --git a/crates/assists/src/tests/generated.rs b/crates/assists/src/tests/generated.rs
index 85e3c6742..b15352cf3 100644
--- a/crates/assists/src/tests/generated.rs
+++ b/crates/assists/src/tests/generated.rs
@@ -531,6 +531,29 @@ fn foo() -> i32 { 42i32 }
 }
 
 #[test]
+fn doctest_inline_function() {
+    check_doc_test(
+        "inline_function",
+        r#####"
+fn add(a: u32, b: u32) -> u32 { a + b }
+fn main() {
+    let x = add<|>(1, 2);
+}
+"#####,
+        r#####"
+fn add(a: u32, b: u32) -> u32 { a + b }
+fn main() {
+    let x = {
+        let a = 1;
+        let b = 2;
+        a + b
+    };
+}
+"#####,
+    )
+}
+
+#[test]
 fn doctest_inline_local_variable() {
     check_doc_test(
         "inline_local_variable",